/*javascript for Learn More by M. Bourbeau
- http://pro.html.it - http://web-graphics.com */

function toggleLayer( whichLayer )
{
  var elem, vis;
  if( document.getElementById ) // this is the way the standards work
    elem = document.getElementById( whichLayer );
  else if( document.all ) // this is the way old msie versions work
      elem = document.all[whichLayer];
  else if( document.layers ) // this is the way nn4 works
    elem = document.layers[whichLayer];
  vis = elem.style;
  // if the style.display value is blank we try to figure it out here
  if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined)
    vis.display = (elem.offsetWidth!=0&&elem.offsetHeight!=0)?'block':'none';
  vis.display = (vis.display==''||vis.display=='block')?'none':'block';
}


function setCheckSend(ArrowNum)
{
if ( document.getElementById('arrowOpen' + ArrowNum).style.display== "none")
{
document.getElementById('arrowOpen' + ArrowNum).style.display= "inline";
document.getElementById('arrowClose' + ArrowNum).style.display= "none";
}
else
{
document.getElementById('arrowOpen' + ArrowNum).style.display= "none";
document.getElementById('arrowClose' + ArrowNum).style.display= "inline";
}
}